Hydrocarbon-burner.



PATENTED SEPT. 29, 1903.

e. w. BOYD. HYDROGARBON BURNER.

. APPLICATION FILED NOV. 1a, 1902.

no MODEL.

2 SHEETS-811E151 1.

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PATENTED SEPT. 29, 1903.

G. W. BOYD.

HYDROGARBON BURNER.

APPLICATION FILED NOV. 18, 1902.

NO MODEL- UNITED STATES Patented September 29, 1903.

1 PATENT OFFICE.

GEORGE BOYD, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR OF ONE- HALF TO JOSIAH 0. LOW AND LOUIS M. BOURBAUD, OF SAN FRAN- CISCO, CALIFORNIA.

HYDROCARBON-BURNEF.

SPECIFICATION forming part of Letters Patent No. 740,082, dated September 29, 1903;

I Application filed November 18,1902- Serial No. 181,890. (No model.)

T or whom, it may concern:

Be it known that I, GEORGE W. BOYD, a citizen of the United States, residing in the city and county of San Francisco, State of California, have invented an Improvement in Hydrocarbon-Burners; and I hereby declare the following to be a full, clear, and exact description of the same. 7

My invention relates to improvements in oil-burners in'which the steam necessary for efiecting volatilizat'ion and combustion is generated by and within the burner itself. Its object is to provide a simple practicable burner adapted for use in stoves or furnaces, and particularly wherever a source of steamsupply is not generally available.

It consistsof the parts and the construction and combination of parts hereinafter of same.

9, through which passes a pipe 10.

more fully described, having reference to the accompanying drawings, in which- Figure 1 is a longitudinal central section of my apparatus. Fig. 2 is a top plan view Fig. 3 is an end view of same. Fig. 4 is a longitudinal central section of a modification of my apparatus. Fig. 5 is. a vertical section of burner-tube. Fig. 6 is a partial section of burner cap or hood. Fig. Tie a partial section of ignition-cup. Fig. 8 is an end view of modified apparatus.

A represents a casing'or generator substantially U shaped in cross-section and having the lateral projections or lugs 2 adjacent to its flat upper surfaces by which it may be supported in horizontal position up'on suitable standards or brackets within the combustionchamber. The U-shaped generatorchamber 3 inclosed by the burner hasits bottom inclined downwardly toward a central outlet 4, and this outlet is controlled by a stop-cock 5exterior to the burner. The opening of the U,which extends the length of the casing, embraces the steam-coil 6, which incloses the steam-delivery pipe 7. The coil is suitably retained in position by the crosspieces 8, cast'integral with the casing. One end of the latter is tapped to receive a plug This pipe connects with the oil-supply pipe 11 and also with the steam-pipe 7. The end of pipe 10 surfaces of the casing on either sideof the steam generating means. These tips each have a conical hood or petticoat 14 disposed transversely of the casing, whereby the vapor is deflected downwardly in one direction upon the coil and in the other direction around the sides of and beneath the burner, where it is ignited from the burning oil in the'pan.

In practice the two rear tips are preferably made to concentrate all their heat upon the coil, as that end of the coil terminates in the steam-pipe 7 and it is desired that the steam should be as dry as possible befor'e being mixed with the oil. The generated steam finds outlet into pipe 10, whereit mingles with the oil to spray the' latter within the generator. Herein the vapor is'still further heated and volatilized by the surrounding mass of swirling flame. As soon, however, as the generation of steam in the coil has fairly begun cock 5 is opened to. allow whatever residue of oil or base products that naturally collect in the burner to blow olf. By inclining the floor of chamber 3 all these products flow naturally to the center. It is necessary to have the cock 5 in order to get the burner going properly, so as to heat up the water in the coil, and it is necessary as soon as steam is generated to open thiscock again and allow the escape of the non-volatile prod nets of the oil; otherwise carbonization within the burner would take place and there would be also experienced a disagreeable puffing or blowing at the tips for a considerable length of time after starting the fire. By opening cock 5 the products which are pipe 9'.

quires no further attention.

the casing is tapped to receive a plug 4,

inclined ordinarily to carbonize and destroy the efficiency and life of a burner have an opportunity to escape, and thenceforth the burner continues to produceasteady intense flame surrounding the casing and filling the entire combustion-chamber of the furnace. The steam-pressure may be indicated by a gage 15, and any excess of steam approaching a dangerous point may find vent through a safety valve 16. A check -valve 17 in the vaporpipe 1O prevents backflow of gas through the coil and water-tank in case the pressure in the generator should exceed the steam-pressure, and a similar valve 18 in the oil-pipe prevents steam escaping through that channel.

Experience has shown this burner to be well adapted for use in continuously-operating furnaces, and once the necessary amount of oil and water is ascertained and regulated by proper valves the burner practically re- Fig. 4 shows a modification of this burner adapted particularly as a combined burner and steam-superheater.

A represents a burner-casing closed at one end and preferably made with its sides and top convexed and its bottom flat, as shown, and provided with respective oil and vapor outlets 2 3 at bottom and top. One end of through which passes a pipe 5 and a steamsupply pipe 6'. The latter is coiled, as at 7, within the burner-chamber to form a superheater and passes out again through the plug, as at 8, and by a return-bend connects with pipe 5'. Oil is fed suitably to pipe 5 through Pipe 6 is preferably connected with a boiler, or it may be connected directly with the municipal watermains, where such a source of supply is available, in which case the coil 7 would form a steam-generator. Pipes 6 and 9' are each provided with checkvalves, as 10, to prevent the backfiow of gas. The respective oil and vapor outlets 2 3 are disposed centrally at the bottom and top of the burner. The pipe 5, situated below coil 7, terminates adjacent to pipe 2'. The lower end of the latter carries a cup 11 and is closed except for the perforations 12', opening into the cup.

In operation the oil is turned on in pipe 9, whence it flows through pipe 5 and discharges upon the bottom of the burner-chamber and then passes down into the cup 11, where it is ignited. The burning of the oil rapidly heats the burner-casing and soon converts the oil therein into vapor, which thenceforth rises and finds an outlet through pipe 3 and the inclined perforations 13. Striking a conical hood or petticoat 14 on pipe 3, the vapor is deflected downward upon and around I the burner and is ignited from the burning oil in cup 11. As the intensity of the flames increases steam is graduallyadmitted through 6 pipe 6. The coil 7' being in turn heated by radiation, the steam which may come from the boiler in a more or less saturated state becomes superheated and passes out through pipe 8 and across the opening of the oil-feed pipe 9 to spray the oil within the burner-casing. I-Ierein the commingled oil and steam are still further heated before escaping through pipe 3 as a hot dry inflammable gas, which envelops the burner and entirely fills the combustion-chamber of the stove or furnace.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. An oil-burner, comprising in combination, a casing inclosinga generator-chamber, an oil-supply pipe terminating within said chamber,vapor-outlets having petticoats substantially as described constructed to discharge the vapor downwardly, and steamgenerating means carried by said casing and interposed between the vapor-outlets and the casing and in the path of the downwardlydiverted vapor.

2. An oil-burner consisting ofva generatorcasing substantially U-shaped in cross-section; steam-generator means embraced within the top opening of said U; said generatorcasing provided with inlet and outlet passages the latter being extended above the steamgenerator means and constructed to discharge the vapor downwardly upon the said steamgenerator means.

3. The combination with the casing of an oil-burner and steam-generating means carried thereby, of a perforated tip extending above the steam-generator and having a hood or petticoat constructed with downwardly-diverging walls to deflect the vapor downwardly upon and around the casing.

4. An oil-burner comprising in combination, a casing inclosing a generator-chamber and having an opening extending longitudinally across its top, steam-generating means carried by said casing within said opening, the bottom of said generator-chamber inclined downwardly toward a central oil and refuse discharge opening, a cock controlling said opening, and jets extending from the casing above the steam-generator and having downwardly-deflecting means by which the heat is returned around and upon the casing.

In witness whereof I have hereunto set my hand.

GEORGE W. BOYD. Witnesses:

S. H. NOURSE, JESSIE O. BRODIE.

ICC 

